JavaScript Magic Card Game

Have a look at this "Mystery Calculator" which came out of a cracker this Christmas.

The complete set consists of 6 cards printed with a series of numbers. Show all the cards to a friend and ask him of her to select one number from any one card. Show the other five cards to your friend asking him or her to say whether the number appears on these cards.

Take all the cards on which your friend says the number appears, add together the top left hand corner number of each card and the total is the number your friend selected.

You should be able to ask the user to select the cards where the number appears, do the calculations, and provide the user with the correct number he/she thought.

JAVASCRIPT ONLYYYYYYY!!!!!!!!!!!!!!!!

13 5 7911 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 2 36 7 10 11 14 15 18 19 22 23 26 27 30 31 34 35 38 39 42 43 46 4736 37 38 39 44 45 46 47 50 51 54 55 58 59 62 6352 53 54 55 60 61 62 63 4 5 6 7 12 13 14 15 20 21 22 23 28 29 30 31 3 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31 24 25 26 27 28 29 30 3140 41 42 43 44 45 46 47 40 41 42 43 44 45 46 4748 49 50 51 52 53 54 5548 49 50 51 52 53 54 55 56 57 58 59 60 61 62 6356 57 58 59 60 61 62 6356 57 58 59 60 61 62 63 16 17 18 19 20 21 22 23 32 33 34 35 36 37 38 39 2 13 5 7911 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 2 36 7 10 11 14 15 18 19 22 23 26 27 30 31 34 35 38 39 42 43 46 4736 37 38 39 44 45 46 47 50 51 54 55 58 59 62 6352 53 54 55 60 61 62 63 4 5 6 7 12 13 14 15 20 21 22 23 28 29 30 31 3 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31 24 25 26 27 28 29 30 3140 41 42 43 44 45 46 47 40 41 42 43 44 45 46 4748 49 50 51 52 53 54 5548 49 50 51 52 53 54 55 56 57 58 59 60 61 62 6356 57 58 59 60 61 62 6356 57 58 59 60 61 62 63 16 17 18 19 20 21 22 23 32 33 34 35 36 37 38 39 2